9 ways to write an irresistible email subject line no one will be able to ignore

thinking at work

  • You might be wondering how to write an effective email subject line.
  • There are several ways to take a subject line from so-so to excellent.
  • Experts told Business Insider that getting specific, like including a deadline or how you know the person you’re emailing, is important. 


A boring email subject line might mean that your email will never be read. 

“You do have to grab enough attention with the subject line to make it worth your reader’s time,” Marc Cenedella, CEO of Ladders, told Business Insider.

You might already know to avoid writing your emails in all caps or otherwise sounding like spam. But, what should you include instead?

Business Insider asked experts to understand the key components of any email subject line — whether you’re emailing a coworker or a potential mentor. Here’s what they told us to include: 

A verb

If you’re getting a request from a potential connection to get lunch, you’re more likely to be interested in “Let’s grab Thai food” than “Networking lunch request.” Begin your subject lines with a verb rather than a bland summary of your request.

Subject lines that begin with action verbs tend to be a lot more enticing, and your emails could be drastically more clickable by adding a vibrant verb at the beginning,” suggests HubSpot

Your subject line should always state exactly what you want as a way to grab attention,” career coach Judge Graham told Business Insider. 


Dmitri Leonov, cofounder of email assistant tool SaneBox, suggested adding tags like [Time Sensitive], [Urgent], or [Action Item] at the beginning of your subject so your recipient knows just what the message entails — and how urgent it is to reply.

As a caveat, don’t tag all your emails with these, especially if you don’t know the person you’re messaging. The 13th “urgent” email that week about, say, the office’s new dishwasher brand is going to be ignored.


NNTO means “no need to open,” while EOM means “end of message.”

If you just need to send a quick, casual update to your team or a connection, Leonov said this tag is a great addition to a email subject line. Just write what’s important in the subject and leave it at that.

Some workplaces might prefer to send this sort of note over a messaging app, like Slack, instead of fill up people’s inboxes. But if your workplace is email-reliant, this might be a useful tip for you. 

See the rest of the story at INSIDER